3df4df870b
We've seen a bunch of cases where a captive portal or network with a firewall will allow a connection to the control server, successfully perform the Noise upgrade, but then fail immediately after trying to send any data on that now-upgraded connection. In many of these cases, we only see this behaviour on the plaintext connection over port 80. This interacts poorly with our controlhttp.Dialer's logic, which first tries to dial over port 80 (to avoid the overhead of double-encrypting, Noise and TLS), and only falls back to port 443/TLS if the connnection cannot be established or upgraded. In such cases, we'd essentially fail to connect to the control server entirely since we'd never fall back to port 443 (since the Noise upgrade succeeded) but we'd get an EOF when trying to do anything with that connection. This could be solved with the TS_FORCE_NOISE_443 envknob, but that's not a great experience for our users. Updates #13597 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I223dec0ae11b8f2946e3fb78dc49fcffc62470f3 |
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Tailscale
Private WireGuard® networks made easy
Overview
This repository contains the majority of Tailscale's open source code.
Notably, it includes the tailscaled daemon and
the tailscale CLI tool. The tailscaled daemon runs on Linux, Windows,
macOS, and to varying degrees
on FreeBSD and OpenBSD. The Tailscale iOS and Android apps use this repo's
code, but this repo doesn't contain the mobile GUI code.
Other Tailscale repos of note:
- the Android app is at https://github.com/tailscale/tailscale-android
- the Synology package is at https://github.com/tailscale/tailscale-synology
- the QNAP package is at https://github.com/tailscale/tailscale-qpkg
- the Chocolatey packaging is at https://github.com/tailscale/tailscale-chocolatey
For background on which parts of Tailscale are open source and why, see https://tailscale.com/opensource/.
Using
We serve packages for a variety of distros and platforms at https://pkgs.tailscale.com.
Other clients
The macOS, iOS, and Windows clients use the code in this repository but additionally include small GUI wrappers. The GUI wrappers on non-open source platforms are themselves not open source.
Building
We always require the latest Go release, currently Go 1.23. (While we build releases with our Go fork, its use is not required.)
go install tailscale.com/cmd/tailscale{,d}
If you're packaging Tailscale for distribution, use build_dist.sh
instead, to burn commit IDs and version info into the binaries:
./build_dist.sh tailscale.com/cmd/tailscale
./build_dist.sh tailscale.com/cmd/tailscaled
If your distro has conventions that preclude the use of
build_dist.sh, please do the equivalent of what it does in your
distro's way, so that bug reports contain useful version information.
Bugs
Please file any issues about this code or the hosted service on the issue tracker.
Contributing
PRs welcome! But please file bugs. Commit messages should reference bugs.
We require Developer Certificate of
Origin
Signed-off-by lines in commits.
See git log for our commit message style. It's basically the same as
Go's style.
About Us
Tailscale is primarily developed by the people at https://github.com/orgs/tailscale/people. For other contributors, see:
- https://github.com/tailscale/tailscale/graphs/contributors
- https://github.com/tailscale/tailscale-android/graphs/contributors
Legal
WireGuard is a registered trademark of Jason A. Donenfeld.